Hi,

There should be an icon on your device, probably under applications or downloads, called Email Setup.  Click that and you should be able to edit your existing email account(s).  You can also access it via a computer at https://bis.na.blackberry.com/html?brand=vzw and add or change email accounts.  For more tips about setting up email accounts on your device, check out Crackberry's how-to at http://crackberry.com/blackbery-101-lecture-11-bis-email-basics for more info.

Doc